STMPE16M31PXQTR STMicroelectronics, STMPE16M31PXQTR Datasheet - Page 32

• Manufacturer Part Number: STMPE16M31PXQTR
• Description: IC CTLR TOUCHKEY 16CHAN 32-QFN
• Manufacturer: STMicroelectronics
• Series: S-Touch™r
• Type: Capacitive, PWM, Ratio Enginer

Specifications of STMPE16M31PXQTR

• Featured Product: STMPE16M31PX
• Number Of Inputs/keys: 16 Key, Slider
• Data Interface: I²C
• Data Rate/sampling Rate (sps, Bps): 100k, 400k
• Voltage Reference: External
• Voltage - Supply: 2.7 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 32-VFQFN Exposed Pad
• Supply Voltage: 1.65 V to 1.95 V
• Number Of Channels: 16
• Dimensions: 4 mm L x 4 mm W x 0.8 mm H
• Temperature Range: - 40 C to + 85 C
• Termination Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Supply: -
• Resolution (bits): -
• Touch Panel Interface: -
• Other names: 497-10738-2

GPIO controller
9
GPIO_DIR
Address:
Type:
Reset:
Description:
LSB (0x10)
MSB (0x11)
32/75
IO-15
IO-7
RW
RW
7
0
7
0
GPIO controller
A total of 16 GPIOs are available in the STMPE16M31PX. Most of the GPIOs are sharing
physical pins with some alternate functions. The GPIO controller contains the registers that
allow the host system to configure each of the pins into either a GPIO, or one of the
alternate functions. Unused GPIOs should be configured as outputs to minimize the power
consumption.
Table 11.
[7:0] IO - X
Address
IO-14
IO-6
RW
RW
0x10
0x12
0x14
0x16
6
0
6
0
Write ‘1’ to a bit to set the corresponding I/O to output.
Write ‘0’ to a bit to set the corresponding I/O to input.
0x10 – 0x11
RW
0x00
Direction seeting of the GPIO.
GPIO controller registers
IO-13
IO-5
RW
RW
Register name
5
0
5
0
GPMR
GPDR
GPSR
GPFR
Doc ID 17058 Rev 2
IO-12
IO-4
RW
RW
4
0
4
0
Reset value
0X0000
0X0000
0X0000
0X0000
IO-11
IO-3
RW
RW
3
0
3
0
R/W
R/W
R/W
R/W
R/W
IO-10
IO-2
RW
RW
GPIO direction register
GPOIO monitor pin state register
GPIO set pin register
GPIO alternate function register
2
0
2
0
GPIO direction register
Description
IO-1
IO-9
RW
RW
1
0
1
0
STMPE16M31PX
IO-0
IO-8
RW
RW
0
0
0
0